First Years's company announced leaving the car seat business this year, so that's why their carseats are really affordable now, because there will be no more support for them. If you don't mind the lack of any support, True Fit is highly recommended IF you're not using a compact car. For example, it doesn't fit a Kelisa rear-facing. I've never tried it in my Myvi, so I'm not sure if it would fit a Myvi.

I've never touched a Chicco NextFit, but it is also on http://carseatblog.com/carseatblogcoms-rec...nded-car-seats/. According to that website though, you cannot use ISOFIX with the carseat anymore once your child is more than 18kg, so if you go with it, make sure that you know how to install it with seatbelt also.

Smaller car or not, if baby less than 1 year old MUST be rear facing ONLY. If carseat cannot rear face in your car, then do NOT buy the carseat! Or at least, don't drive the baby in the smaller car. NEVER NEVER NEVER put baby <1yo in front-facing seat, please.

And rear facing is always safer than front facing, so you should rear face for as long as possible. Some kids find rear facing even more comfortable than front facing because when front facing their legs dangle, but rear facing they can put their legs on the back of the car. http://carseatblog.com/5168/why-rear-facin...-rf-link-guide/ Scroll down to the videos if you don't want to read the links.

And whether can use isofix or not depends on instructions of the carseat and your car itself. Different carseat got different instructions. Different car also got different ability. Before you buy any carseat, 1. read your car manual, to make sure you know what limits they put for carseats if any; 2. TEST INSTALLING THE CAR SEAT. At least on the demo chair at the shop, if they don't let you test in your own car.

REMEMBER THAT A WRONGLY INSTALLED CAR SEAT CAN BE MORE DANGEROUS THAN NO CAR SEAT AT ALL.

I am not using first year true fit. It was a friend who was using it in her kenari, that's why I know it cannot rear-face in kenari. But she also has a Proton Inspira, so she was rear-facing her baby in the bigger car and only put front facing in the kenari after her baby was heavy enough to be front facing.

For me, I started with a combi coccoro. It's small and fits easily in the myvi. Can install with both isofix or with seatbelt well, no moving where it's installed. My son was able to rear face in the coccoro until 2 years old, no problem. I turned it front-facing when there was only 1 inch left above his head (he was still nowhere near the 18kg limit, but height is also a limit). After that I looked for a front-facing seat that had harness and could become booster later. I paid a fortune for Britax Pinnacle because it had the easiest install I've ever seen in my entire life. LoL but unfortunately I had a car accident just one week later. By the way, my son slept through the car accident! Since I had to buy another carseat anyway, I decided to go back to rear facing, and I bought a Diono Radian, which is what my son is in now.